tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git kobject-const head: ab566595bfc8de2e05e5174796f04997d7c01fb3 commit: ab566595bfc8de2e05e5174796f04997d7c01fb3 [25/25] bus: remove the "p" pointer in struct bus_type config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230201/202302010222.N9SSmGUP-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git/commit/?id=ab566595bfc8de2e05e5174796f04997d7c01fb3 git remote add driver-core https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git git fetch --no-tags driver-core kobject-const git checkout ab566595bfc8de2e05e5174796f04997d7c01fb3 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/dma/idxd/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/dma/idxd/compat.c: In function 'unbind_store': >> drivers/dma/idxd/compat.c:19:32: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 19 | struct bus_type *bus = drv->bus; | ^~~ drivers/dma/idxd/compat.c: In function 'bind_store': drivers/dma/idxd/compat.c:35:32: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 35 | struct bus_type *bus = drv->bus; | ^~~ vim +/const +19 drivers/dma/idxd/compat.c 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 12 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 13 #define DRIVER_ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) \ 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 14 struct driver_attribute driver_attr_##_name = \ 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 15 __ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 16 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 17 static ssize_t unbind_store(struct device_driver *drv, const char *buf, size_t count) 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 18 { 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 @19 struct bus_type *bus = drv->bus; 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 20 struct device *dev; 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 21 int rc = -ENODEV; 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 22 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 23 dev = bus_find_device_by_name(bus, NULL, buf); 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 24 if (dev && dev->driver) { 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 25 device_driver_detach(dev); 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 26 rc = count; 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 27 } 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 28 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 29 return rc; 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 30 } 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 31 static DRIVER_ATTR_IGNORE_LOCKDEP(unbind, 0200, NULL, unbind_store); 6e7f3ee97bbe2c7 Dave Jiang 2021-07-15 32 :::::: The code at line 19 was first introduced by commit :::::: 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9 dmaengine: idxd: move dsa_drv support to compatible mode :::::: TO: Dave Jiang <dave.jiang@xxxxxxxxx> :::::: CC: Vinod Koul <vkoul@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
